IFITM3 pseudogene 4 (IFITM4P)

IFITM3 pseudogene 4, abbreviated as IFITM4P, is not a protein-coding gene or a classical molecular target such as a receptor, enzyme, or transporter; rather, it is a transcribed processed pseudogene that produces a functional long noncoding RNA (lncRNA). IFITM4P belongs to the interferon-induced transmembrane (IFITM) family but does not code for a protein. Instead, it acts as a regulator of the immune response to viral infection by functioning as a competing endogenous RNA (ceRNA). IFITM4P lncRNA acts as a molecular decoy for microRNAs (notably miR-24-3p and miR-122) that would otherwise repress translation of antiviral IFITM proteins (IFITM1–3). Thus, upregulation of IFITM4P increases the abundance of IFITM1–3 proteins, enhancing the cell’s antiviral capacity, especially against enveloped viruses like influenza A virus. Conversely, reducing IFITM4P expression leads to lower IFITM protein levels and increased viral replication. Notable points: - IFITM4P is not considered a therapeutic target itself, as it does not encode a protein and cannot be directly modulated by drugs in the traditional sense. - There are no known drugs or direct mechanisms of action involving this pseudogene, and it is not used as a biomarker or target for safety concerns. - The name "IFITM3P4" appears to be an uncommon or nonstandard synonym; the canonical designation is "IFITM4P" or "IFITM3 pseudogene 4". - Its relevance is in basic research for understanding the regulation of the IFITM family’s antiviral response. Summary judgement: This is not a conventional molecular target but a regulatory pseudogene lncRNA; the abbreviation "IFITM3P4" is a likely variant, with "IFITM4P" being the preferred form.

Other names

IFITM4PIFITM3P4Interferon-induced transmembrane protein 3 pseudogene 4